Alexey Belkov
31 lines
789 B
HTML
31 lines
789 B
HTML
<html>
|
|
<body>
|
|
This inspection reports dangerous operations inside constructors including:
|
|
|
|
<ul>
|
|
<li>Accessing a non-final property in constructor</li>
|
|
<li>Calling a non-final function in constructor</li>
|
|
<li>Using <b>this</b> as a function argument in a constructor of a non-final class</li>
|
|
</ul>
|
|
|
|
These operations are dangerous because your class can be inherited,
|
|
and a derived class is not yet initialized at this moment. Typical example:
|
|
<br /><br />
|
|
|
|
<pre>
|
|
<b>abstract class</b> Base {
|
|
<b>val</b> code = calculate()
|
|
<b>abstract fun</b> calculate(): Int
|
|
}
|
|
|
|
<b>class</b> Derived(<b>private val</b> x: Int) : Base() {
|
|
<b>override fun</b> calculate() = x
|
|
}
|
|
|
|
<b>fun</b> testIt() {
|
|
println(Derived(42).code) <i>// Expected: 42, actual: 0</i>
|
|
}
|
|
</pre>
|
|
</body>
|
|
</html>
|